This study examines whether the Student Athlete Testing Using Random Notification ("SATURN") program affects illicit drug and alcohol use among student athletes. The study experienced high rates of sample attrition. Seven of the 18 study schools (39%) left the study and were not included in the analysis. Some students at the remaining schools were excluded for not completing consent forms; the study authors do not report how many. Of the students who provided consent, 29% of "SATURN" students and 19% of control students did not complete a survey the following spring, and attrition rates were higher in later rounds of data collection. In addition, the SATURN and control students were different at baseline. "SATURN" students were older, more likely to be male, and more likely to have used steroids in the past year. These differences could bias the results. The study authors did not report adjusting for these differences when estimating "SATURN"'s effects. [The following study is the focus of this "Quick Review": "Outcomes of a Prospective Trial of Student-Athlete Drug Testing: The Student Athlete Testing Using Random Notification ('SATURN') Study." "Journal of Adolescent Health" 41 (2007) 421-429. Linn Goldberg, Diane Elliot, David P. MacKinnon, Esther L. Moe, Kerry S. Kuehl, Myeongsun Yoon, Aaron Taylor, and Jason Williams.]